WorksheetsFactors, Multiples, Primes
Total questions: 14
Worksheet time: 12mins
What are factors?
A number that can only be divided by one and itself
The smallest multiple that is common in two numbers multiplication tables.
Numbers that multiply together to make another number.
A number which appears as a result in a given number’s times table.
The biggest number that is common to two or more numbers list of factors.
What is a multiple?
A number that can only be divided by one and itself
The smallest multiple that is common in two numbers multiplication tables.
Numbers that multiply together to make another number.
A number which appears as a result in a given number’s times table.
The biggest number that is common to two or more numbers list of factors.
What is a prime number?
A number that can only be divided by one and itself
The smallest multiple that is common in two numbers multiplication tables.
Numbers that multiply together to make another number.
A number which appears as a result in a given number’s times table.
The biggest number that is common to two or more numbers list of factors.
What is the Highest Common Factor(HCF)?
A number that can only be divided by one and itself
The smallest multiple that is common in two numbers multiplication tables.
Numbers that multiply together to make another number.
A number which appears as a result in a given number’s times table.
The biggest number that is common to two or more numbers list of factors.
What is the Lowest Common Multiple (LCM)?
A number that can only be divided by one and itself
The smallest multiple that is common in two numbers multiplication tables.
Numbers that multiply together to make another number.
A number which appears as a result in a given number’s times table.
The biggest number that is common to two or more numbers list of factors.
Select (tick) the prime numbers
6
1
3
7
12
List the first six multiples of 4
(a)
List the first five multiples of 6
(a)
What is the Lowest Common Multiple of 4 and 6 (hint use your answers from questions 3 and 4)
(a)
Find the Lowest Common Multiple of 3 and 7
(a)
Select and write down the numbers that are factors of 12.
24 8 4 12 1 5 2 36
24, 4, 8
1, 2, 4, 12
12, 24, 36
2, 5, 8
8) Here are the factors of 8 and 12 identify the Highest common factor.
8 => 1, 2, 4, 8
12 => 1, 2, 3, 4, 6, 12
(a)
Find the Highest Common factor of 24 and 32
(a)
Draw a factor tree for 36 and then use it to show 36 as a product of its primes.
4 x 9
4 x 3 x 3
2 x 2 x 3 x 3
2 x 2 x 9
2 x 3 x 6
